Question

помогите решить уравнение:
5 х (2+3Х) - (7Х-10) = 4

Answer 1

10+15х-7х+10=4
15х-7х=4-10-10
8х=-16
х=-2

Answer 2

5·(2+3х)-(7х-10)=4
10+15х-7х+10=4
20+8х=4
8х=-16
х=-2